Double-row ball bearing



June 23, 1925. y

.l P. coFRANcEsco ET AL DOUBLE ROW BALL BEARING Filledv Nov. 3. 1924- a ATTORNEY zJAzJ Patented June Z3, 1925.

i rame UNITED STATES PATENT OFFICE.

PETER COFRANCESCO AND WILLIAM P. THIEDE, OF NEW BRITAIN, CONNECTICUT,

ASSIGNORS TO THE FAFNIR BEARING COMPANY, OF NEW'l BRITAIN, CONNECTICUT,

A CORPORATION OF CONNECTICUT.

DOUBLE-ROV] BALL BEARING.

Application tiled November f/"o all fio/10m it may concern.

Be it known that we, PETER CornANCnsco and lWILLIAM P. THIEDE, citizens of the United States of America, residing at New Brita in, Connecticut, have invented new and uset'ul improvements in a Double-Row Ball Bearing, of which the following is a specilication.

This invention relates to improvements in ball bearings, the object being to provide ball bearings of the double row unit han-` dling type with ball spacers of asimple, effective and durable form. The invention contemplates quick, inexpensive and effective method ot assembling the spacers for the respective rows of balls.

In the accon'ipanying drawings Fig. l is a side elevation of a double row ball bearing ot the so called unit handling type, equipped with our improved spacers;

lfie. 2 is a section thereof, showing the cor ted bearing;

Fig. a similar view illustrating the spacers in place to receive the linal asf-'ouibling oi'ieration.

l is au outer bearing ring. 2 is an inner bearing ring. These ringsV are provided with two sets of complementary raceways tor receivingtwo rows of balls 3-3, respectively. In order to properly space these balls suitable spacing means must be provided. To that end I form each spacer of a strip ot sheet metal, circular in form, the metal being tluted so as to form a series of spaced ball-receiving pockets. Y

T he shape of each spacer, preparatory to being assembled, is best seen in Fig. 3. In this ligure the outer parts/1 4 are arched and overstanfl the balls S-Sa of the respective sets. The intermediate innerk parts 5 5 are reversely arched so that, in the Iirst act ot assembling, they may be slipped freely between adjacent balls to space the same as shown in Fig. 3 with the parts .lj-5a 3, 1924. Serial No. 747,450.

confronting each other. To secure the spacers in place pressure is applied by means ot suitable tools to outer sides of the opposed spacers, so as to crowd them toward each other. This crowding operation causes the arched portions 5--5a to latten'out and spread, wherebythe adjacent balls will be sutiiciently embraced by the spacers so that said balls will hold the latter in place, as shown in' Fig. 2.

inthe drawings we have shown all of the parte 5-5 as 'of such length that all et the same are flattened out and spread by mutual Contactin the method of assembling,but it is obvious that it is only necessary that a sutcient number be thus toi-ined to guarantee holding the spacers properly in place. y i

ily this very simple method of causing thc two spacers to mutually Contact at their inner sides during the assembling operation, such spacers may be very quickly and etli'ec-y tivel assembled on the balls.

lt will be understood further that we have attenmted infFig. 2 to only conventionally .rcp it the unal form or the spacer, as the particular.' shape of the flattened arches 5-5" 'may vary somewhat.

Vire claim:

The method of applyingball spacers to the balls in a double row ball bearing of the unit handling type, comprising forming two separate spacers, each spacer' being tinted to form reversely arranged inner and outer arched portions, applying such spacers to the ball learings with the inner arches confronting each other, then applying pressure tothe outside of both of said spacers to crowd them toward each other to simultaneously liatten and spread certain of the adjacent inner arches of the vopposed spacers by mutual contact.

PETER GOFRANCESCO. VILLIAM P. THIEDE. 

